[go: up one dir, main page]

EP0016763A1 - Methode de degazage controle du petrole brut - Google Patents

Methode de degazage controle du petrole brut

Info

Publication number
EP0016763A1
EP0016763A1 EP79900400A EP79900400A EP0016763A1 EP 0016763 A1 EP0016763 A1 EP 0016763A1 EP 79900400 A EP79900400 A EP 79900400A EP 79900400 A EP79900400 A EP 79900400A EP 0016763 A1 EP0016763 A1 EP 0016763A1
Authority
EP
European Patent Office
Prior art keywords
gas
tanks
crude oil
tanker
oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP79900400A
Other languages
German (de)
English (en)
Inventor
Inge Svedung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ivl Institutet For Vatten Och Luftvardsforskning
Original Assignee
Ivl Institutet For Vatten Och Luftvardsforskning
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ivl Institutet For Vatten Och Luftvardsforskning filed Critical Ivl Institutet For Vatten Och Luftvardsforskning
Publication of EP0016763A1 publication Critical patent/EP0016763A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0005—Degasification of liquids with one or more auxiliary substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J99/00—Subject matter not provided for in other groups of this subclass
    • B63J2099/001—Burning of transported goods, e.g. fuel, boil-off or refuse
    • B63J2099/003—Burning of transported goods, e.g. fuel, boil-off or refuse of cargo oil or fuel, or of boil-off gases, e.g. for propulsive purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0636—Flow or movement of content
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system

Definitions

  • a purpose of the invention is to replace during the transport of crude oil in tankers a part of the bunker oil required for the propulsion of the tanker with gas from the cargo.
  • the cost of the bunker oil required for the propulsion of a tanker of 300.000-400.000 tons during a voyage from the oil-producing countries at the Persian Gulf to the refinery plants in Europe amounts at present to 1,3-2,2 million SKr, at which a bunker consumption of 3-900-5.600 tons is estimated, which corresponds to 1-2% of the quantitv of transported crude oil.
  • Gas is used for producing so called compressed gas and for producing energy required for the process.
  • Crude oils normally contain 1-2 and in certain cases 2-4 percentage by weight of gaseous components (methane to butane). As was previously mentioned the bunker consumption during a transport voyage corresponds to 1-2% of the cargo. A considerable amount of the bunker oil required for the propulsion of the tanker could therefore be replaced by gas, which is taken aboard and is stored dissolved in the crude oil cargo.
  • the method according to the invention can also be utilized for energy production in tanker tonnage being laid up and being intended as a stock reserve of crude oil and where the tankers perform the function as an intermediate storage in the crude oil harbours of the refineries.
  • the four lightest hydrocarbon compounds of alkane type are methane CH 4 , ethane. C 2 H 6 , propane C 3 H 8 and butane C 4 H 10 . They all have boiling points below 0oC and therefore exist in gaseous state at normal room temperatures. They however are soluble in heavier liquid hydrocarbon compounds, and can therefore exist in a liquid state also at normal ambient temperatures.
  • the net transport between the gas phase and the liquid phase can thus be effected e.g. by varying the composition of the gas phase.
  • a gas-rich oil is meant an oil being in a state of equilibrium with a gas phase with high partial pressures of low-boiling components. If a decrease of the amount of low-boiling components in a crude oil is desired, this can thus be achieved by keeping the concentration of these compounds in the ambient gas phase low.
  • verv big tanks (15.000- 50.000 m 3 ) and the transport of low-boiling components in the liquid phase is slow the outgassing will however take place relatively slowly. In order to increase the outgassing speed it is required besides a ventilation of the gas phase that the liquid phase is agitated and that the interface, through which a transport of low-boiling components can take place, is increased.
  • the method according to the invention is based on that inert gas or tank gas is pressed . into the tanks close to the bottom through nozzles, which atomize the gas stream, so that small bubbles are formed. When these bubbles rise through the crude oil they cause an agitation of the oil and an increase of the phase interface gas-oil, whereby the outgassing process is accelerated. By the fact that the gas flow can be adjusted the outgassing process can be controlled.
  • the inert gas is taken from so called inert gas plants, which often are provided in modern crude oil tankers. These plants comprise an arrangement of flue gas washer (scrubber), fan, conduits, valves and control means, by aid of which combustion gases from the boilers are scrubbed and is led into the -tanks mainly in connec- tion with the discharging of the cargo.
  • the purpose of this procedure is to decrease the oxygen content of the tank-gas below the limit at which a comhustion can be maintained.
  • the main components of the inert gas are nitrogen, oxygen (15%), carbon dioxide and water vapour. Other components are nitrogen oxides, carbon monoxide and sulphur dioxide.
  • the inert gas flow should not be allowed to be too high.
  • the concentration of hydrocarbons in the gas will then be so low that the introduction of the gas in the boilers would involve a poor combustion economy.
  • energy is required for heating the inert gas a too extensive ventilation of the crude oil also involves that certain amounts of heavier, valuable fractions are removed from the crude oil.
  • the mean molecular weight of the gas is 40
  • the inert gas flow required for driving off this quantity of gaseous hydrocarbons from the crude oil depends on a number of factors. Some of them are: a) The amount of gaseous hydrocarbons dissolved in the oil b) The desired concentration of hydrocarbons in the gas phase c) The temperature of the oil d) The method used for introducing the inert gas into the tanks. The number and design of the blower nozzles. If the gas leaving the tanks has a volume ratio hydrocarbons/inert gas between 10/1 to 1/1 an inert gas flow of between 250-2.500 m 3 /hour (about 4-40 m 3 /min) is required for driving off 2.500 m 3 hydrocarbon gas per hour at NTP.
  • the inert gas plants in tankers usually have a capacity of at least 10.000 m 3 /hour.
  • Figure 1 shows schematically an arrangement for controlling the outgassing from the crude oil in the tanks of a tanker
  • Figure 2 and 3 show schematically a system working according to the counter flow principle.
  • B denotes a boiler, S a scrubber, FR a flow regulator, K a compressor and D drop separators.
  • the outgassing is controlled by leading inert gas and/or tank gas into the tanks at the bottom level thereof.
  • a system of ejectors E mounted at the bottom of some tanks and being driven by crude oil flows O. These flows are taken from other tanks in the tanker and are forced with pumps P placed in the pump room of the tanker.
  • the ejectors suck inert gas I from the inert gas conduit on deck or tank gas T from the ullage space of the tanks to the bottom level thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Flow Control (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Methode de degazage controle du petrole brut contenu dans les reservoirs d'un petrolier. Le but est d'utiliser les gaz comme source d'energie, par exemple pour la propulsion du petrolier. Le degazage est accelere en introduisant un gaz inerte (1) et/ou un gaz de reservoir (T) dans les reservoirs avec un debit reglable, produisant ainsi une agitation du petrole et une augmentation de l'interface de la phase liquide-gaz. Compte tenu du fait que le debit est reglable, il est possible de controler le procede de degazage.
EP79900400A 1978-04-10 1979-11-19 Methode de degazage controle du petrole brut Withdrawn EP0016763A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7803962A SE409314B (sv) 1978-04-10 1978-04-10 Kontrollerad avgasning av raolja i lasttankarna hos ett fartyg
SE7803962 1978-04-10

Publications (1)

Publication Number Publication Date
EP0016763A1 true EP0016763A1 (fr) 1980-10-15

Family

ID=20334531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79900400A Withdrawn EP0016763A1 (fr) 1978-04-10 1979-11-19 Methode de degazage controle du petrole brut

Country Status (6)

Country Link
EP (1) EP0016763A1 (fr)
JP (1) JPS55500351A (fr)
GB (1) GB2043009B (fr)
NO (1) NO791198L (fr)
SE (1) SE409314B (fr)
WO (1) WO1979000909A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO823336L (no) * 1982-10-04 1984-04-05 Moss Rosenberg Verft As Anordning ved tostoffs-dieselmotor og fremgangsmaater ved drift av tostoffs-dieselmotorer
NO304483B1 (no) * 1996-04-25 1998-12-28 Norske Stats Oljeselskap FremgangsmÕte for oppfanging av lavmolekylµre, flyktige forbindelser fra hydrokarbonholdige vµsker
NO961666L (no) * 1996-04-25 1997-10-27 Norske Stats Oljeselskap Fremgangsmåte og system for oppfanging og lagring av lett hydrokarbondamp fra råolje
DE102010007328A1 (de) * 2010-02-08 2011-08-11 Meyer Werft GmbH, 26871 Seeschiff, insbesondere gasbetriebenes Seeschiff
EP3481523A4 (fr) * 2016-07-11 2020-02-26 Terra Primoris Holdings, LLC Procédé d'aération d'un liquide inflammable pour extraire de la vapeur inflammable

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039862A (en) * 1959-07-13 1962-06-19 Rose B Yocham Apparatus for producing burnable gas from liquid gasoline
DE2109501B2 (de) * 1971-03-01 1973-06-07 Aktieselskabet Burmeister & Wain's Motor og Maskinfabnk af 1971, Kopen hagen Antriebsmaschinenanlage fuer tankschiffe zum transport fluessiger, brennbarer gase

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO7900909A1 *

Also Published As

Publication number Publication date
NO791198L (no) 1979-10-11
SE409314B (sv) 1979-08-13
JPS55500351A (fr) 1980-06-19
GB2043009B (en) 1982-10-06
GB2043009A (en) 1980-10-01
WO1979000909A1 (fr) 1979-11-15

Similar Documents

Publication Publication Date Title
NO137565B (no) Fremgangsm}te og apparat for separering av luft
NO312138B1 (no) Fremgangsmåte og sjöbasert installasjon for håndtering og behandling av flerfraksjonshydrokarboner til sjös
US7087804B2 (en) Use of waste nitrogen from air separation units for blanketing cargo and ballast tanks
KR20190127020A (ko) 원유 운반선의 휘발성 유기화합물 회수 시스템 및 방법
EP0016763A1 (fr) Methode de degazage controle du petrole brut
US7096689B2 (en) Method and a device for loading petroleum
US3114344A (en) Ship for transporting volatile liquid and process
KR102019471B1 (ko) 메탄가 조절이 필요한 선박용 엔진의 액화가스 연료 공급 히터 및 그러한 연료 공급 히터를 포함하는 액화가스 연료 공급 시스템 및 방법
WO1997040307A1 (fr) Procede et systeme de recuperation d'une vapeur d'hydrocarbure leger, a partir de petrole brut, et de stockage de celle-ci
EP0007750B1 (fr) Déshydratation des hydrocarbures et dispositif utilisé
US3106827A (en) Apparatus for pumping boiling liquid
OA12577A (en) Floating system for liquefying natural gas.
KR102781718B1 (ko) 선박용 연료 공급 시스템
US7004211B2 (en) Method and device for reducing the separation of volatile organic compounds from oil during filling of tanks
JP2024084213A (ja) イナートガス供給システム、船舶、及びイナートガス供給方法
US2942942A (en) Continuous process for producing sodium bicarbonate slurry
RU98470U1 (ru) Комбинированный комплекс обеспечения промышленной и экологической безопасности функционирования резервуарных парков, транспортных цистерн и складов нефти и/или нефтепродуктов или легковоспламеняющихся веществ с сохранением их товарных свойств
US20040177754A1 (en) Hc-shielding gas
TUROF ANALYSIS AND DIMENSIONING OF THE FUEL SUPPLY SYSTEM OF BULK-CARRIER.
SU1123955A1 (ru) Установка дл хранени нефти и нефтепродуктов
US20210285720A1 (en) Method of reducing mercury in stabilized condensate
US1482933A (en) Method of treating natural-gas gasoline and of making gas therefrom
WO1992020571A1 (fr) Procede permettant de reduire les emissions de gaz
Egloff Hydrocarbon Gas as Power in the United States1
NO312118B1 (no) Fremgangsmåte og system for oppfanging og lagring av lett hydrokarbondamp fra råolje

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19801024

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SVEDUNG, INGE